51122455456 has 12 divisors (see below), whose sum is σ = 100647334242. Its totient is φ = 25561227712.

The previous prime is 51122455451. The next prime is 51122455487. The reversal of 51122455456 is 65455422115.

It can be written as a sum of positive squares in only one way, i.e., 51121210000 + 1245456 = 226100^2 + 1116^2 .

It is a super-2 number, since 2×51122455456² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51122455451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 798788335 + ... + 798788398.

Almost surely, 2^51122455456 is an apocalyptic number.

It is an amenable number.

51122455456 is a deficient number, since it is larger than the sum of its proper divisors (49524878786).

51122455456 is a wasteful number, since it uses less digits than its factorization.

51122455456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597576743 (or 1597576735 counting only the distinct ones).

The product of its digits is 240000, while the sum is 40.

The spelling of 51122455456 in words is "fifty-one billion, one hundred twenty-two million, four hundred fifty-five thousand, four hundred fifty-six".